Main Jet #116 for SI Carbs for Scooters & Mopeds
ITEM# TT-26364
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Description
Main Jet #116 for SI Carburetors in Scooters and Mopeds
The Main Jet #116 is made for SI carburetors used on many scooters and mopeds. This precisely machined part controls how much fuel reaches the engine, which has a direct effect on how it runs. If you are looking to fine-tune performance, you can browse our range of carburetor parts and jets. Sizes run from 82 to 165, and this particular jet suits vintage Vespa models that generally call for jets in the 85 to 116 range.
How It Works and Tuning
The jet sits at the bottom of the main jet stack, where it meters fuel into the engine. A higher jet number lets more fuel pass. Many riders try different sizes to suit their own engine builds and riding goals. For step-by-step jetting advice, check out the guides available on the subject.
Fitting Tips
When swapping in a new Main Jet, make sure it seats correctly in its position. The job is simple, and it is a part that often needs revisiting as you make changes to the engine. Checking it periodically helps keep fuel use reasonable and throttle response consistent.
Specifications
- Size: 116
- Position: Main jet stack
- Fits: SI carburetors for scooters and mopeds (main jet stack, size #116)
Fitment
How to choose: Compare the number stamped on your existing main jet, or the jetting specification for your engine, against the 116 size. The range covers 82 to 165, and bigger numbers allow more fuel through.
Shop more: Scooter Carburetors & Jets · Scooter Parts
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